Lil Jon, is an American music producer, rapper, crunkster and occasional disc jockey who was a member of the group Lil Jon & The East Side Boyz. He is often recognized for his hype shouts of “Yeah!”, “What?”, “Okay!”, and “Everybody!”. Lil Jon formed the group in 1997, and the group released several albums between then and 2004. In March 2011, Lil Jon will be a part of the fourth season of The Celebrity Apprentice on NBC. — Wikipedia